[Distutils] Distutils and MinGW with C++

[Seo Sanghyeon]

I want someone to have a look at SF patch 888839 and check it in
if it looks fine. It is a one-line patch.

This solves a problem mentioned in following threads:
http://groups.google.com/groups?th=1978cf9e295b50fb
http://groups.google.com/groups?th=935cfbfbb092c48a

The first thread suggests linking with libstdc++ or hacking
distutils.sysconfig to link with g++, which doesn't feel right.

The second thread says linking with libstdc++ hack doesn't work
any more with 2.3, because 2.3 'fixed' the problem: it
autodetects C++ file and invokes nonexistent 'cc'.

Regards,